|Quadrangle map, 1:250,000-scale||BN|
|Quadrangle map, 1:63,360-scale||C-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Columbia Creek is a south tributary to Washington Creek, the western headwater tributary of Kougarok River (BN041). The mouth of Columbia Creek is 4 miles upstream from the mouth of Washington Creek. This locality was not included by Cobb (1972; MF 417; 1975; OFR 75-429).|
Geologic descriptionSainsbury and others (1969) show 3,500 feet of placer mine workings along the main channel of Columbia Creek ,starting 5,000 feet upstream from its mouth. There are no other reports of mining on this creek. Bedrock in this area is primarily exposed on the crest of nearby uplands (Sainsbury and others, 1969) where rocks of a mafic metavolcanic assemblage, considered Ordovician in age by Till and others (1986) are present.
|Geologic map unit||(-164.992697336485, 65.7092743387376)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary|
|Workings or exploration||Sainsbury and others (1969) show 3,500 feet of open-cut placer mine workings along the main channel of Columbia Creek starting 5,000 feet upstream from its mouth.|
|Indication of production||Yes; small|
Cobb, E.H., 1972, Metallic mineral resources map of the Bendeleben quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-417, 1 sheet, scale 1:250,000.
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-429, 123 p.
Sainsbury, C.L., Kachadoorian, Reuben, Hudson, Travis, Smith, T.E., Richards, T.R., and Todd, W.E., 1969, Reconnaissance geologic maps and sample data, Teller A-1, A-2, A-3, B-1, B-2, B-3, C-1, and Bendeleben A-6, B-6, C-6, D-5, and D-6 quadrangles. Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 69-236, 49 p., 12 sheets, scale 1:63,360.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||3/15/1999|